Bug 336624

Summary:	Copying files from one folder to another skips files on ext4 partition without warnings/errors
Product:	[Frameworks and Libraries] kio	Reporter:	Merike Sell <merikes.lists>
Component:	general	Assignee:	David Faure <faure>
Status:	RESOLVED DUPLICATE
Severity:	critical	CC:	cfeck, nate
Priority:	NOR
Version:	4.13.0
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed In:

Description Merike Sell 2014-06-23 16:46:52 UTC

I was trying to pinpoint one other bug and needed to do quite a bit of copying back and forth in .thunderbird folder. At some point things behaved weirdly enough that I checked and discovered that Ctrl+A, Ctrl+C, Ctrl+V I'd been using in Dolphin skipped some files silently.  If I copy the same files using "cp -r * destination" there are no files skipped.

After trying to repro multiple times it appears to be intermittent. I've got two kioclient logs, one with skipped files the other without. The one with skipped files seems to contain what looks like a crash stack:

kioclient(22693)/kio (KIOJob) KIO::SimpleJob::~SimpleJob: Killing job KIO::SimpleJob(0x8d3a5e0) in destructor! "[
0: /usr/lib/libkdecore.so.5(kRealBacktrace(int)+0x3e) [0xb645303e]
1: /usr/lib/libkio.so.5(KIO::SimpleJob::~SimpleJob()+0x96) [0xb75b2d86]
2: /usr/lib/libkio.so.5(KIO::ListJob::~ListJob()+0x26) [0xb75b31f6]
3: /usr/lib/libkio.so.5(KIO::ListJob::~ListJob()+0x1c) [0xb75b321c]
4: /usr/lib/i386-linux-gnu/libQtCore.so.4(qDeleteInEventHandler(QObject*)+0x13) [0xb61a0423]
5: /usr/lib/i386-linux-gnu/libQtCore.so.4(QObject::event(QEvent*)+0x230) [0xb61a65b0]
6: /usr/lib/i386-linux-gnu/libQtGui.so.4(QApplicationPrivate::notify_helper(QObject*, QEvent*)+0xa4) [0xb6765744]
7: /usr/lib/i386-linux-gnu/libQtGui.so.4(QApplication::notify(QObject*, QEvent*)+0x203) [0xb676c223]
8: /usr/lib/i386-linux-gnu/libQtCore.so.4(QCoreApplication::notifyInternal(QObject*, QEvent*)+0x7a) [0xb618ceda]
9: /usr/lib/i386-linux-gnu/libQtCore.so.4(QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)+0x1dd) [0xb61906ad]
10: /usr/lib/i386-linux-gnu/libQtCore.so.4(QCoreApplication::sendPostedEvents(QObject*, int)+0x2c) [0xb6190bbc]
11: /usr/lib/i386-linux-gnu/libQtCore.so.4(+0x1a5f6e) [0xb61bcf6e]
12: /lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x13e) [0xb554c83e]
13: /lib/i386-linux-gnu/libglib-2.0.so.0(+0x46be8) [0xb554cbe8]
14: /lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x38) [0xb554cca8]
15: /usr/lib/i386-linux-gnu/libQtCore.so.4(QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)+0x5f) [0xb61bc8bf]
16: /usr/lib/i386-linux-gnu/libQtGui.so.4(+0x1ee32e) [0xb681a32e]
17: /usr/lib/i386-linux-gnu/libQtCore.so.4(QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)+0x43) [0xb618b9f3]
18: /usr/lib/i386-linux-gnu/libQtCore.so.4(QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)+0x179) [0xb618bd19]
19: /usr/lib/i386-linux-gnu/libQtCore.so.4(QCoreApplication::exec()+0x8e) [0xb619189e]
20: /usr/lib/i386-linux-gnu/libQtGui.so.4(QApplication::exec()+0x24) [0xb6763974]
21: kioclient() [0x804ba8d]
22: kioclient() [0x804c912]
23: kioclient() [0x804add6]
24: /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0xb5d92905]
25: kioclient() [0x804b2cf]

I don't get any crash notifications though. Will try to install debug libs to get more info. Is there a way to attach files here privately? I don't want logs public but could send them to an interested developer. This really ruins my trust in Dolphin and a simple "this was fixed in version x, please upgrade" would be useful too if it's not a bug in trunk. Although I am using Kubuntu 13.10 which is still supported and should be stable enough to not loose files like this.

Reproducible: Sometimes

Comment 1 Merike Sell 2014-06-26 10:47:00 UTC

Actually it also happens on 4.13.0.

Comment 2 Christoph Feck 2014-07-17 19:34:35 UTC

To check which files should be copied, you could do this:
- Ctrl+A, Ctrl+C in source to copy
- switch to a text editor, Ctrl+V there (then you have the list to copy)
- switch back to destination folder, Ctrl+V there

After everything is copied, compare the contents of the destination with the list of files in text editor.

I am wondering, if the the clipboard doesn't contain all files, or if some of them are skipped while processing.

Also, does killing Klipper make a difference?

Comment 3 Merike Sell 2014-07-17 20:14:59 UTC

While I originally noticed this bug by copying in Dolphin where clipboard could be involved the bug also manifested when using kioclient from command-line. This surely means that the problem isn't just the clipboard losing items?

Comment 4 Christoph Feck 2014-07-17 20:27:26 UTC

Correct. If you already tested kioclient, the clipboard isn't to blame.

Comment 5 Nate Graham 2018-05-03 21:41:28 UTC


*** This bug has been marked as a duplicate of bug 162211 ***